OpenJPEG 1.5.1
tgt.h
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1/*
2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef __TGT_H
33#define __TGT_H
44
48typedef struct opj_tgt_node {
50 int value;
51 int low;
52 int known;
54
58typedef struct opj_tgt_tree {
64
67/* ----------------------------------------------------------------------- */
74opj_tgt_tree_t *tgt_create(int numleafsh, int numleafsv);
79void tgt_destroy(opj_tgt_tree_t *tree);
84void tgt_reset(opj_tgt_tree_t *tree);
91void tgt_setvalue(opj_tgt_tree_t *tree, int leafno, int value);
99void tgt_encode(opj_bio_t *bio, opj_tgt_tree_t *tree, int leafno, int threshold);
108int tgt_decode(opj_bio_t *bio, opj_tgt_tree_t *tree, int leafno, int threshold);
109/* ----------------------------------------------------------------------- */
113
114#endif /* __TGT_H */
Individual bit input-output stream (BIO)
Definition bio.h:47
Tag node.
Definition tgt.h:48
int known
Definition tgt.h:52
int low
Definition tgt.h:51
int value
Definition tgt.h:50
struct opj_tgt_node * parent
Definition tgt.h:49
Tag tree.
Definition tgt.h:58
opj_tgt_node_t * nodes
Definition tgt.h:62
int numleafsh
Definition tgt.h:59
int numnodes
Definition tgt.h:61
int numleafsv
Definition tgt.h:60
int tgt_decode(opj_bio_t *bio, opj_tgt_tree_t *tree, int leafno, int threshold)
Decode the value of a leaf of the tag-tree up to a given threshold.
Definition tgt.c:178
opj_tgt_tree_t * tgt_create(int numleafsh, int numleafsv)
Create a tag-tree.
Definition tgt.c:40
struct opj_tgt_node opj_tgt_node_t
Tag node.
void tgt_encode(opj_bio_t *bio, opj_tgt_tree_t *tree, int leafno, int threshold)
Encode the value of a leaf of the tag-tree up to a given threshold.
Definition tgt.c:138
void tgt_setvalue(opj_tgt_tree_t *tree, int leafno, int value)
Set the value of a leaf of a tag-tree.
Definition tgt.c:129
void tgt_destroy(opj_tgt_tree_t *tree)
Destroy a tag-tree, liberating memory.
Definition tgt.c:111
struct opj_tgt_tree opj_tgt_tree_t
Tag tree.
void tgt_reset(opj_tgt_tree_t *tree)
Reset a tag-tree (set all leaves to 0)
Definition tgt.c:116